Sierra Leone vs Sub-Saharan Africa: Import product concentration index
Import product concentration index over time
- Sierra Leone
- Sub-Saharan Africa
How they compare
Sierra Leone currently reports 0.3664 against 0.0956 in Sub-Saharan Africa, a difference of 0.2708.
That makes Sierra Leone's figure about 3.8 times Sub-Saharan Africa's.
Across all 17 years both countries report, Sierra Leone has been ahead every year.
Sierra Leone ranks 2nd and Sub-Saharan Africa ranks 1st of 53 countries.
Sierra Leone has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Sierra Leone | Sub-Saharan Africa | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 0.1129 | 0.0505 | 0.0625 | Sierra Leone |
| 2000s | 0.3253 | 0.0889 | 0.2364 | Sierra Leone |
| 2010s | 0.3644 | 0.0943 | 0.2701 | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher import product concentration index, Sierra Leone or Sub-Saharan Africa?
- Sierra Leone, at 0.3664 against 0.0956 in Sub-Saharan Africa as of 2011.
- What is the difference in import product concentration index between Sierra Leone and Sub-Saharan Africa?
- 0.2708, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Sub-Saharan Africa?
- 17 years are reported by both, from 1995 to 2011.
- How do Sierra Leone and Sub-Saharan Africa rank globally for import product concentration index?
- Sierra Leone ranks 2nd and Sub-Saharan Africa ranks 1st of 53 countries.
- Where does this data come from?
- UNCTAD Statistical Office, also reported in the UNCTAD Handbook of Statistics, various issues (http://unctadstat.unctad.org/), published as Import product concentration index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
This indicator reflects the Herfindahl-Hirschmann index measure of the degree of import concentration within a country. The sectoral Hirschmann index is defined as the square root of the sum of the squared shares of exports of each industry in total exports for the region under study. Takes a value between 0 and 1, with 1 indicating that only a single product is exported. Higher values indicate that imports are concentrated in fewer sectors. On the contrary, values closer to 0 reflect a more equal distribution of market shares among importers. Note that this type of concentration indicator tends to be quite vulnerable to cyclical fluctuations in relative-prices, in a way that commodity price rises make commodity importers look more concentrated.